JPS63295043A - Runner in bottom plate for bottom pouring ingot making - Google Patents
Runner in bottom plate for bottom pouring ingot makingInfo
- Publication number
- JPS63295043A JPS63295043A JP12695187A JP12695187A JPS63295043A JP S63295043 A JPS63295043 A JP S63295043A JP 12695187 A JP12695187 A JP 12695187A JP 12695187 A JP12695187 A JP 12695187A JP S63295043 A JPS63295043 A JP S63295043A
- Authority
- JP
- Japan
- Prior art keywords
- runner
- metal
- pipe
- bottom plate
- thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000004576 sand Substances 0.000 description 24
- 229910000831 Steel Inorganic materials 0.000 description 17
- 239000010959 steel Substances 0.000 description 17
- 239000011449 brick Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000013379 molasses Nutrition 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 241000723436 Chamaecyparis obtusa Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、鋼等の造塊に用いる下注造塊用定盤の湯道
に関し、定盤への敷設が容易な上に耐久性や安全性に優
れ、しかも５ンニングコスト安く優れた品質の鋼塊を得
ることが可能な湯道を提供するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a runner for a base pouring ingot used for ingot making of steel, etc., which is easy to install on the surface plate and has good durability. To provide a runner which is excellent in safety and can obtain a steel ingot of excellent quality at a low manufacturing cost.
〈背景技術〉
近年、鉄鋼製造業においては連続鋳造技術が目まぐるし
い進展を見せ、特に構造用鋼材等に代表される普通鋼等
の殆んどは溶鋼から直接的にスラブやブルームに連続鋳
造されるようになってきた。<Background technology> In recent years, continuous casting technology has made rapid progress in the steel manufacturing industry, and most common steels, particularly structural steel, are continuously cast directly from molten steel into slabs and blooms. It's starting to look like this.
しかしながら、このような状況にあっても、特殊な目的
に使用される合金鋼等や需要家から受注する少ロフト品
等については製造技術や作業性・経済性の面から今なお
造塊法によって製造される場合が多く、現在に至るも、
造塊法に関する作業性の改善１品質向上或いは低コスト
化等を目的とした種々の改良提案は後を断たれることが
なかった。特に、“上注造塊法”に比べて穏やかな注湯
状態が確保できる“下注造塊法”は合金鋼等の高級鋼種
に適したものとして今も広く利用されており、そのため
、造塊設備の湯道部や押湯部を中心として様々な新しい
工夫が積極的に採り入れられている。However, even under these circumstances, alloy steel used for special purposes and small loft products ordered by customers are still manufactured using the ingot making method due to manufacturing technology, workability, and economical considerations. It is often manufactured, and even to this day,
Improving workability regarding the ingot-forming method 1 Various improvement proposals aimed at improving quality or reducing costs have never ceased. In particular, the "bottom pour ingot method," which ensures a gentler pouring condition than the "top pour ingot method," is still widely used as a method suitable for high-grade steels such as alloy steel, and is therefore widely used. Various new ideas are being actively adopted, mainly in the runners and risers of the lump equipment.
ところで、第７図は、下注造塊用定盤における従来の一
般的な湯道の例であり、定盤１１の湯道溝１２内に砂１
３を介して角柱状の孔あき耐火レンガ１４を敷設し、砂
の上面部１５を糖蜜で固めてなるものの縦断面を示して
いる。ここで、定盤１１に湯道を敷設するに当っては、
まず湯道溝１２内に砂１３を所定厚さで散布し、次いで
角柱状の孔あき耐火レンガ１４を配設してから湯道溝１
２の側壁と孔あき耐火レンガ１４の側面との間隙に更に
砂１３を充填し、続いて砂１３の上面部１５に糖蜜を浸
み込ませて固めると言う作業を必要とする。ここで、砂
１３の上面部１５を糖蜜で固めるのは、定盤の所定部分
に鋼塊鋳型（インゴットケース）を載置した場合、その
載置部分では砂の表面部が鋼塊鋳型内に面することとな
るので鋳型内に注がれる溶湯内に砂が巻込まれることが
懸念されるからである。By the way, FIG. 7 shows an example of a conventional general runner in a base pouring ingot making surface plate, in which sand 1 is placed in the runner groove 12 of the surface plate 11.
3 shows a vertical cross section of a structure in which a prismatic perforated refractory brick 14 is laid through the sand and the upper surface 15 of sand is hardened with molasses. Here, when laying the runner on the surface plate 11,
First, sand 13 is sprinkled to a predetermined thickness in the runner groove 12, and then a prismatic perforated firebrick 14 is placed.
It is necessary to further fill the gap between the side wall of 2 and the side of the perforated refractory brick 14 with sand 13, and then to infiltrate the upper surface 15 of the sand 13 with molasses and harden it. Here, the reason why the upper surface part 15 of the sand 13 is hardened with molasses is that when a steel ingot mold (ingot case) is placed on a predetermined part of the surface plate, the surface part of the sand is hardened into the steel ingot mold at that place. This is because there is a concern that sand may be caught in the molten metal poured into the mold since the sand will be facing the mold.
しかし、前記の如き湯道を敷設してなされる造塊作業に
あっては、上述したような湯道敷設のための作業が予想
以上に面倒であり、これが造塊作業能率低下の大きな原
因の１つとなっていた。However, in the case of ingot-making work that is performed by laying runners as described above, the work for laying the runners as described above is more troublesome than expected, and this is a major cause of the decline in the efficiency of the ingot-making work. It was one.
しかも、前記孔あき耐火レンガ１４は、凝固した湯道部
分除去のために１回の造塊作業が終了する毎に破壊・廃
棄され、砂１３も事実上再利用されることが殆んど無い
ことから、資源的・コスト的な不利はかなりの重きをな
していたのである。Furthermore, the perforated refractory bricks 14 are destroyed and discarded every time one round of agglomeration work is completed in order to remove the solidified runners, and the sand 13 is virtually never reused. Therefore, the resource and cost disadvantages were quite significant.
このように、従来は、下注造塊用定盤の湯道敷設に当っ
て多くの作業工程が必要であり、しかも孔あき耐火レン
ガ等の使い捨てを余儀なくされることからランニングコ
ストの高騰化を否めないのに加えて、“押え砂の使用”
が鋼塊中への介在物混入や作業環境の悪化につながるこ
とを完全に防止することは極めて困難なことであり、更
には、該押え砂に水分が含まれるようなことがあると溶
湯との接触により水蒸気爆発を起こす危険性すらあって
、湯道の構築には細心の注意が要求されていた。In this way, in the past, many work processes were required to lay the runners on the surface plate for base pouring, and in addition, the perforated firebricks, etc. had to be disposed of, leading to an increase in running costs. In addition to the undeniable “use of presser sand”
It is extremely difficult to completely prevent inclusions from entering the steel ingot and deteriorating the working environment.Furthermore, if the pressing sand contains moisture, it may cause problems with the molten metal. There was even a risk of a steam explosion due to contact with the water, so great care was required when constructing runners.
く問題点を解決するための手段〉
本発明者等は、上述した従来の湯道に見られる問題点を
解消し、定盤への敷設作業性、耐久性。Means for Solving the Problems> The present inventors have solved the problems seen in the conventional runners mentioned above, and improved the workability and durability of laying the runners on the surface plate.
安全性或いはコストの面から一段と有利であって、しか
も鋼塊品質に悪影響を及ぼすことのない下注造塊用定盤
の湯道を案出すべく様々な観点から研究を行ったところ
、
（ａ） 前記した従来の下注造塊用定盤の湯道にあっ
ては、湯道部分における体積の大部分を占める“角柱状
孔あき耐火レンガの使い捨てがランニングコスト上昇の
主原因となっており、使い捨て耐火物の抑制策を施さな
い限りは所望するコスト低下を望めない、
ｆｂ） 押え砂の使用も湯道敷設作業性１作業環境。We conducted research from various viewpoints to devise a runner for a base pouring ingot that is more advantageous in terms of safety and cost, and does not adversely affect the quality of the steel ingot. ) In the conventional runners of the above-mentioned surface plate for bottom pouring, the disposable prismatic perforated refractory bricks, which occupy most of the volume of the runners, are the main cause of increased running costs. , the desired cost reduction cannot be expected unless measures are taken to control disposable refractories.fb) The use of presser sand also affects the workability of runners.1 Work environment.
安全性並びに鋼塊品質等にとって好ましくなく、砂を使
用しないことが理想的であるが、止むを得ない場合でも
その使用を極力制限する対策を講じることが欠かせない
、
との結論に到達せざるを得なかった。We have reached the conclusion that although it would be ideal not to use sand as it is unfavorable for safety and steel ingot quality, even if it is unavoidable, it is essential to take measures to limit its use as much as possible. I had no choice.
この発明は、上記結論に基づいてなされた本発明者等の
更なる研究によって完成されたものであり、下注造塊用
定盤の湯道を、耐火物製薄肉パイプを金属製分割バック
アップ材内に内装した構成とする点に特徴を有するもの
である。This invention was completed through further research by the present inventors based on the above conclusion, and the runners of the base pouring ingot are replaced by thin-walled refractory pipes with metal split back-up material. It is unique in that it is constructed internally.
ここで使用する薄肉耐火物製パイプは押出成形等によっ
て容易に製造することができ、その素材としては従来の
孔あき耐火レンガと同様、Ａ１１ｔＯ３゜５ｉ０２．Ｃ
ａＯ又はＭｇＯ等を主成分とするもの、或いはこれらの
うちの２種以上の混合物からなるもの等が使用可能であ
り、鋳込み対象の鋼種等に応じて適宜選択すれば良い。The thin-walled refractory pipe used here can be easily manufactured by extrusion molding, etc., and its material is A11tO3゜5i02. C
A material containing aO or MgO as a main component, or a mixture of two or more of these can be used, and may be selected as appropriate depending on the type of steel to be cast.
また、金属製分割バックアップ材としては、例えば分割
面にパイプ保持用凹溝を形成した一組の金属製ブロック
を挙げることができる。この金属製分割ブロックの材質
としては、強度や耐久性に優れていて繰り返し使用が可
能な、定盤と同様の鋳鉄や銑鉄鋳物を適用するのが好ま
しく、形態は上下２つ割りとするのが良い。そして、前
記バックアップ材の形態として上記金属製分割ブロック
を採用する場合には、その外径寸法を既成の定盤の湯道
溝と同様に形成しておけば、角柱状孔あき耐火レンガを
湯道に適用していた従来の定盤にそのまま適用すること
ができて経済的である。Further, as the metal divided backup material, for example, a set of metal blocks having pipe holding grooves formed on the divided surface can be mentioned. As for the material of this divided metal block, it is preferable to use cast iron or pig iron casting, which is similar to the surface plate, as it has excellent strength and durability and can be used repeatedly. good. When the metal split block is used as the backup material, if the outer diameter of the block is formed in the same way as the runner groove of the existing surface plate, the prismatic perforated refractory brick can be It is economical because it can be applied as is to conventional surface plates used on roads.
また、金属製分割バックアンプ材を、定盤に形成した湯
道溝の底面にパイプ保持用凹溝を直接、的に形成したも
のと、この湯道溝に嵌合して上方からパイプに密着して
保持する金属製ブロック（底面にはやはりパイプ保持用
の半筒状凹溝が形成されている）との組合わせ体とする
こともできる。In addition, the metal split back amplifier material is formed with a concave groove for holding the pipe directly on the bottom of the runner groove formed on the surface plate, and it fits into this runner groove and tightly attaches to the pipe from above. It is also possible to form a combination with a metal block (which also has a semi-cylindrical groove for holding the pipe formed in its bottom surface) for holding the pipe.
更には、金属製分割バックアップ材を上下２つ割りの２
重定盤そのものとすることもでき、この場合には、２重
定盤の合わせ面に互いに合致する薄肉耐火物製パイプ保
持用凹溝が形成される。Furthermore, we divided the metal split backup material into two parts, top and bottom.
It is also possible to use a heavy surface plate itself, and in this case, grooves for holding a thin refractory pipe that match each other are formed on the mating surfaces of the double surface plate.
下注造塊用定盤の湯道を上記の如くに構成すると、使い
捨てとなる部分は原則として耐火物製薄肉パイプのみと
なり、その重量は同一長さで比較すると従来の角柱状孔
あき耐火レンガの１７３程度に削減することが可能であ
る。When the runner of the surface plate for bottom pouring is configured as described above, the only disposable part is, in principle, a thin-walled refractory pipe, and its weight is comparable to that of conventional prismatic perforated refractory bricks when compared with the same length. It is possible to reduce the number to about 173.
次に、実施例に係る図面を参照しながら、この発明をそ
の他の効果等と共に具体的に詳述する。Next, the present invention will be specifically described in detail along with other effects, etc., with reference to drawings related to embodiments.
〈実施例〉
まず、第１図で示すものは、この発明に係る湯道の一つ
を敷設した下注定盤の使用態様を示す斜視図であり、図
中に仮想線で示すように、湯道の開口部上に注湯管及び
鋼塊鋳型（インゴットケース）を！３２置して鋳造が行
なわれる。<Example> First, what is shown in FIG. 1 is a perspective view showing the usage of a bottom pouring plate on which one of the runners according to the present invention is installed. Place the pouring pipe and steel ingot mold (ingot case) above the road opening! Casting is carried out after 32 seconds.
さて、第２図は第１図中のＡ−Ａ切断面、即ちこの発明
に係る湯道例の縦断面を示している。Now, FIG. 2 shows a cross section taken along the line AA in FIG. 1, that is, a vertical section of the example of the runner according to the present invention.
第２図において、従来の湯道における角柱状孔あき耐火
レンガに代わるものとして耐火物製薄肉パイプ４を分割
金属ブロック６に内装したものが使用されている。鋳鉄
等からなる分割金属プロッ接合面には耐火物製薄肉バイ
ブ４の外周面と一致する凹部が形成されている。この場
合、分割金属ブロックの下半部６ｂは、ボルト等によっ
て定盤の湯道溝の底面に固定しておいても良い。なお、
第３図は上記−組の分割金属ブロックを示す概略斜視図
である。In FIG. 2, a thin-walled refractory pipe 4 housed inside a split metal block 6 is used as an alternative to the prismatic perforated refractory bricks in the conventional runner. A concave portion that coincides with the outer circumferential surface of the thin-walled refractory vibrator 4 is formed in the joint surface of the split metal prong made of cast iron or the like. In this case, the lower half portion 6b of the divided metal block may be fixed to the bottom surface of the runner groove of the surface plate with bolts or the like. In addition,
FIG. 3 is a schematic perspective view showing the second set of divided metal blocks.
そして、湯道の敷設にあたっては、湯道溝２内に分割金
属ブロックの下半部６ｂを敷き詰めた後、耐火物製薄肉
バイブ４の所定数を金属ブロックの凹部内に載置して突
き合わせ接続し、その上に分割金属ブロックの上半部６
ａを被せれば良く、また別法として、湯道の一部分毎に
耐火物製薄肉パイプ４を分割金属ブロックの上半部６ａ
および下半部６ｂで挟持し、これら王者を一体化した後
に湯道溝２内に敷設しても良い。When laying the runner, after laying the lower half 6b of the split metal block in the runner groove 2, a predetermined number of thin-walled refractory vibrators 4 are placed in the recess of the metal block and butt-connected. and on top of that the upper half of the split metal block 6
Alternatively, the refractory thin-walled pipe 4 may be divided into upper half portions 6a of the metal block for each part of the runner.
It is also possible to install it in the runner groove 2 after sandwiching it between the lower half portions 6b and integrating these kings.
前者の方法によれば、耐火物製薄肉パイプ４同士の接続
部と分割金属ブロック６同士の接続部とを湯道上の別個
の位置に配することができるほか、湯道直線部等での長
尺パイプの使用も可能となって何れにしても湯漏れ防止
上極めて有利となるが、例え耐火物製薄肉パイプ同士の
接続部と分割金属ブロック同士の接続部とが同位置にな
つたとしても、分割金属ブロックは冷却能力が従来の耐
火レンガに比して格段に大きいため、湯道内からの溶湯
の浸透があっても直ちに凝固してしまって大事に至るこ
とはない。なお、第４図は前記湯道を敷設した下注造塊
用定盤の要部模式図である。According to the former method, the connecting portions between the thin-walled refractory pipes 4 and the connecting portions between the divided metal blocks 6 can be arranged at separate positions on the runner, and the length at the straight section of the runner can be placed at separate locations. It is now possible to use length pipes, which is extremely advantageous in terms of preventing hot water from leaking, but even if the connections between the thin-walled refractory pipes and the connections between the divided metal blocks are in the same position. Since the cooling capacity of split metal blocks is much greater than that of conventional firebricks, even if molten metal seeps into the runners, it will solidify immediately and will not cause any serious problems. In addition, FIG. 4 is a schematic diagram of the main part of the surface plate for bottom pouring ingots on which the above-mentioned runners are laid.
また、この場合には押え砂や、砂押えのための塘蜜或い
はキャスタブル耐火物等を使用しないので、これらの使
用に起因する不都合は全く生じることがなく、しかも耐
火物製薄肉バイブ４は分割金属ブロック６にて強固に保
護されているので、砂等が無くても外力によって損傷す
る恐れはない。In addition, in this case, since presser sand, sand presser, castable refractories, etc., are not used, there are no inconveniences caused by the use of these materials, and the thin-walled refractory vibrator 4 can be separated. Since it is strongly protected by the metal block 6, there is no risk of damage from external force even if there is no sand or the like.
更に、このような湯道を備えた定盤を使用して得られた
鋼塊には、湯道部に起因すると思われる欠陥が何ら認め
られないこともＴａ認された。Furthermore, it was also found that the steel ingots obtained using the surface plate having such runners had no defects considered to be caused by the runners.
しかも、造塊作業を通じて鋳鉄製の分割ブロックに目立
った溶損は認められず、定盤本体と略同等の耐久性を確
認することができた。Furthermore, no noticeable erosion was observed in the cast iron divided blocks during the ingot-forming work, confirming that their durability was almost equivalent to that of the main body of the surface plate.
勿論、前記のような耐火物製薄肉パイプをバンクアップ
する金属製分割ブロックを、従来の角柱状孔あき耐火レ
ンガと同様に砂を介して定盤の湯道溝に設置して良いこ
とは言うまでもない。砂を介して金属製分割ブロックを
設置することは、例えば定盤の湯道溝に歪みが生じてい
る時等には有利な作業性をもたらすものである。そして
、この場合には砂や砂押えを使用しないことによる前記
利益は享受できないものの、先に述べたその他の本発明
による利益は十分に確保できる。Of course, it goes without saying that the metal dividing blocks for banking up thin-walled refractory pipes as described above may be installed in the runner grooves of the surface plate through sand in the same way as conventional prismatic perforated firebricks. stomach. Installing the metal split blocks through the sand provides advantageous workability, for example, when the runner grooves of the surface plate are distorted. In this case, although the benefits described above due to not using sand or a sand press cannot be enjoyed, the other benefits of the present invention described above can be sufficiently secured.
なお、上記金属製分割ブロックは、溶湯に接する上半部
上面がある程度溶損した段階で、上半分と下半部とを入
れ替えて使用するのがより経済的である。その際、上半
部にのみ必要な湯上り口用間孔は予め下半部に形成して
おいても良いし、入れ替えに先だって下半部に穿孔加工
を施して形成しても良い。In addition, it is more economical to use the above-mentioned divided metal block by replacing the upper half and the lower half at a stage when the upper surface of the upper half in contact with the molten metal has been eroded to some extent. At this time, the hole for the hot water outlet, which is necessary only in the upper half, may be formed in advance in the lower half, or may be formed by drilling in the lower half prior to replacement.
一方、第５図は、定盤１に形成した湯道溝２の底面にパ
イプ保持用凹溝を直接的に形成し、この上に耐火物製薄
肉パイプ４を！置すると共に、更に底面に半筒状凹溝が
形成された金属製ブ。）り６ａ′（本質的に前記分割金
属ブロックの上半分と同じである）を被せて構成された
本発明に係る湯道例である。On the other hand, in FIG. 5, a pipe holding groove is directly formed on the bottom of the runner groove 2 formed on the surface plate 1, and a thin refractory pipe 4 is placed on top of the groove. A metal block with a semi-cylindrical groove formed on the bottom. This is an example of a runner according to the present invention, which is constructed by covering the upper half of the split metal block 6a' (essentially the same as the upper half of the split metal block).
更に、第６図は、２重定盤の上部分１′と下部分１″そ
のものを耐火物製薄肉パイプ４のバックアンプ材として
湯道を構成した例であるが、２重定盤の上部分１′と下
部分１′との合わせ面に互いに合致する薄肉耐火物製パ
イプ保持用の凹溝が形成されていて、金属製ブロック等
を要することなく湯道の構築が行えるので湯道形成作業
性が抜群に向上することとなる。Furthermore, Fig. 6 shows an example in which the upper part 1' and the lower part 1'' of the double surface plate themselves are used as the back amplifier material for the thin-walled refractory pipe 4 to form a runner. A concave groove for holding a thin-walled refractory pipe that matches each other is formed on the mating surfaces of 1' and the lower part 1', and the runner can be constructed without the need for metal blocks, which improves the workability of forming the runner. will be significantly improved.
そして、上記第５固成いは第６図で示した湯道によると
湯道形成作業性の点でより優位性を確保できることは勿
論であるが、造塊作業そのものや鋼塊品質の面でも、先
に述べた分割金属ブロックを用いた場合と同様の利点を
享受できることも確かめられた。The above-mentioned No. 5 solidification runner, shown in Fig. 6, is of course superior in terms of runner forming workability, but also in terms of the ingot making work itself and the quality of the steel ingot. It was also confirmed that the same advantages as those obtained by using the split metal blocks described above can be enjoyed.
く効果の総括〉
以上に説明した如く、この発明によれば、下注造塊用定
盤の湯道において使い捨てとなる部分は原則的に薄肉耐
火物製パイプのみとなるため、ランニングコストが大幅
に削減される他、分割金属ブロックの大なる冷却能力に
よって湯漏れが生じることがなくなり、歩留り向上や鋼
塊の欠陥防止の面で大なる効果がもたらされる共に、湯
道の敷設作業性が格段に向上し、また造塊現場の安全性
の向上にも役立つなど、産業上有用な効果がもたらされ
るのである。Summary of Effects> As explained above, according to the present invention, the only disposable part in the runner of the base pouring ingot is basically the thin-walled refractory pipe, so running costs are significantly reduced. In addition, the large cooling capacity of the divided metal blocks eliminates the occurrence of hot water leaks, which has great effects in terms of improving yield and preventing defects in steel ingots, and greatly improves the workability of laying runners. This brings about industrially useful effects, such as improving safety and also helping to improve the safety of ingot making sites.
第１図は、本発明に係る下注造塊用定盤の湯道の使用例
を示す概略模式図、
第２図は、本発明に係る湯道の実施例を示した縦断面概
略図、
第３図は、本発明に係る一組の分割金属ブロック例を示
す概略斜視図、
第４図は、本発明に係る湯道を敷設した下注造塊用定盤
の要部模式図、
第５図及び第６図は、何れも前記とは別の本発明に係る
湯道の実施例を示した縦断面概略図、！Ａｌ凶は、捷米
の卜圧遣塊用疋磐の湯道の檜断面概略図である。
図面において、
１．１１・・・定盤、 １′・・・２重定盤の上部分、
ビ・・・２ｆｆｉ定盤の下部分、 ２，１２・・・湯道
溝、３・・・湯道開口部、 ４・・・薄肉耐火物製パイ
プ、５．１５・・・キャスタブル耐火物、
６・・・分割金属ブロック、
６ａ・・・分割金属ブロックの上半部、６ｂ・・・分割
金属ブロックの下半部、６ａ′・・・底面に半筒状凹溝
が形成された金属製ブロック、
１３・・・砂、 １４・・・角柱状孔あき耐火レンガ
、１５・・・砂の表面部。FIG. 1 is a schematic diagram showing an example of the use of a runner of a bottom pouring ingot making surface plate according to the present invention, FIG. 2 is a schematic vertical cross-sectional view showing an example of a runner according to the present invention, FIG. 3 is a schematic perspective view showing an example of a set of divided metal blocks according to the present invention; FIG. 5 and 6 are vertical cross-sectional schematic diagrams showing another embodiment of the runner according to the present invention, which is different from the above. Al-Ko is a schematic cross-sectional view of the Hinoki cypress runner of Hiiwa for pressing and pressing rice. In the drawings, 1.11... surface plate, 1'... upper part of double surface plate,
B... lower part of 2ffi surface plate, 2, 12... runner groove, 3... runner opening, 4... thin-walled refractory pipe, 5.15... castable refractory, 6... Divided metal block, 6a... Upper half of the split metal block, 6b... Lower half of the split metal block, 6a'... Metal with a semi-cylindrical groove formed on the bottom surface Block, 13... Sand, 14... Prismatic perforated firebrick, 15... Surface portion of sand.
Claims (1)
装したことを特徴とする下注造塊用定盤の湯道。A runner for a surface plate for bottom pouring ingots, characterized by a thin-walled refractory pipe enclosed within a metal split back-up material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12695187A JPS63295043A (en) | 1987-05-26 | 1987-05-26 | Runner in bottom plate for bottom pouring ingot making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12695187A JPS63295043A (en) | 1987-05-26 | 1987-05-26 | Runner in bottom plate for bottom pouring ingot making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63295043A true JPS63295043A (en) | 1988-12-01 |
Family
ID=14947932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12695187A Pending JPS63295043A (en) | 1987-05-26 | 1987-05-26 | Runner in bottom plate for bottom pouring ingot making |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63295043A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154610A (en) * | 1991-12-05 | 1993-06-22 | Tajimi Taika Kogyo Kk | Ingot mold device |
| JPH05154609A (en) * | 1991-12-05 | 1993-06-22 | Tajimi Taika Kogyo Kk | Method for constructing sprue in ingot mold device |
| CN114433796A (en) * | 2022-02-14 | 2022-05-06 | 王小川 | High-efficiency pouring ingot mold structure and pouring process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557330U (en) * | 1978-06-27 | 1980-01-18 | ||
| JPS62144852A (en) * | 1985-12-20 | 1987-06-29 | Daido Steel Co Ltd | Runner for bottom pouring ingot making |
-
1987
- 1987-05-26 JP JP12695187A patent/JPS63295043A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS557330U (en) * | 1978-06-27 | 1980-01-18 | ||
| JPS62144852A (en) * | 1985-12-20 | 1987-06-29 | Daido Steel Co Ltd | Runner for bottom pouring ingot making |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05154610A (en) * | 1991-12-05 | 1993-06-22 | Tajimi Taika Kogyo Kk | Ingot mold device |
| JPH05154609A (en) * | 1991-12-05 | 1993-06-22 | Tajimi Taika Kogyo Kk | Method for constructing sprue in ingot mold device |
| CN114433796A (en) * | 2022-02-14 | 2022-05-06 | 王小川 | High-efficiency pouring ingot mold structure and pouring process |
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